Air-feed device



Sept. 4, 1923. 1,467,249

5. M. PERFECT V 7 AIR FEED DEVICE I Filed Sept. 15. 1922 Patented Sept.4, 1923.

UNITED s AIR-FEED, DEVICE,

Application filed September 15, 1922. Serial No. 588,435.

To all whom it may concern:

Be it known that I, EBL'R M. PERFECT, a citizen of the United States,and a resident of Cleveland, in the county of Cuyahoga and State ofOhio, have invented a new and Improved Air-Feed Device, of which thefollowing is a full, clear, and exact description.

This invention relates to improvements in air feed devices, and moreparticularly to an attachment for internal con bustionengines whichinsures a feed of air into the intake manifold in the engine in proportion to the feed of fuel from the carbureter, an object of the inventionbeing to 'provide a device of the character stated which results in aneconomy of fuel consumption so that increased mileage may be had fromgiven quantity of gas, to insure a more perfect combustion, to increasethe power of the engine, and to insure a complete burning of the mixtureand prevent or'reduce toa minimum the liability of carbonformation inthe engine head. I v

A further object is to provide an attachment, of the characterv stated,which ca fbe manufactured and sold at -a11 extremely low price, whichcan be placed in operative position without altering or injuring. theconstruction of the engine and carbureter, and which can be installed byanyone of average intelligence not requiring skilled labor.

A further object is to provide a device of the character stated which isoperated by the throttle lever as the latter moves the throttle of thecarbureter so that the mixture of fuel and air is automatic and properlyproportioned. a

A further object is to provide a device of the character stated whichenables th min troduction of water into the intake manifold to. generatesteam and burn'carbon forming in the, engine head.

Withthese and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangement of partsas will be more fully hereinafter described and pointed out in theclaims.

In the accompanying drawings Figure 1 is a fragmentary plan viewillustrating my improved device in operative position.

. Figure 2 is a view in transverse section on the line 2-2, of Figural.

Figure 3 is a view similar to Figure 2 but showing a water pipeconnected to the air inlet port for supplying water to burn carbon aswill more fully hereinafter-appear.

1 represents a carbureter and 2 the intake manifold of an internalcombustion engine. stitutes the body portion of my improved attachmentor device, and which is located between the flanges 4 and 5 of thecarbureter and manifold respectively,- t11Cl lS111%LCl(-) with openings6 to receive the bolts 7 which are projected through the flanges 41:"and 5 and secured bynuts 8 tofirinly in the block in a position betweenthe flanges. i

It will thus be noted that the attach- 'ment can be positioned withoutaltering the structure as in use and hence can be readily lnserted by'slmply' removing the 3 represents a block which con ordinary bolts andconnecting as above explained.

Block '3 is made with a central opening 9 registering with the outlet ofthe'carb n.

reter and the bore of the intake'toi permit a free passage of fuelto theengine; 10 represents the throttle arm and 11 the rod connecting the arm10 with the ordinary accelerator lever of' the car. f

This arm 10 extends across the block 3 and is locatedunder a lever 12.This lever 12 is provided at one end with a pair of perforatedears 13for the reception of a bolt 14: projected through the block 3 andsecured by means of a nut 15 to provide a pivotal connection for thelever. A depending lip 15 is formed on the leverto engage the end of theblock? and limit the pivotal movement of the lever in one direction. I

Thelever 12functions tocontrol the posi tion of an air inlet valve 16which latter'has a beveled seat 17 at the outer endof an inlet port 18which communicatesfwith the portion engages in the groove 20 and compelsthe valve to move with the lever. The enlarged outer end 21 of the valveprevents possibility of accidental disconnection of the lever and thevalve.

The lever 12 is bent forming a cam 23 which is engaged by the throttlearm 10 so that when the arm 10 is moved in a direction to open thethrottle, it will engage the cam portion 23 and pivot the lever 12 in adirection to open valve 16 so that the valve 16 will be opened inproportion to the opening of the throttle, and admit air in proportionto the fuel. As the throttle is closed the suction of the engine willdraw the valve 16 toward closed position so that in manipulating thethrottle, the position of the valve is also controlled so as to insure aproper proportion of air in accordance with the feed of fuel.

To remove carbon from the engine, it is simply necessary to remove thelever nd the valve 16 and insert a water pipe 24 into the port 18 andallow the suction of the en gine to draw water therein which generates asteam and burns the carbon or dislodges the same and causes theparticles of carbon to be discharged through the exhaust of the engine.

In illustration of Figure 1 I show my device as attached to the ordinarytype of carbureter of a Ford engine, as I have. found that the device isparticularly adapted for use in connection with engines of this typealthough it is of course, to be understood that the invention is notlimited to any particular type of engine or automobile, as it may beused in connection with any form of engine and capable of modificationas to structural details in order to properly function in its locationor position. The valve is shown as seating by gravity aided by suctionof the engine, but it is obvious that if the valve were otherwiselocated it would be desirable to assist the closing or opening movementby employing any desired mechanical means.

Various slight changes might be made in the general form and arrangementof parts described without departing from my invention, and hence I donot limit myself to the precise details set forth, but consider myselfat liberty to make such changes and alterations as fairly fall withinthe spirit and scope of the appended claims.

I claim:

1. A device of the character described,

.nected to the block and having a cam comprising a block having fuelpassage therethrough, and an air inlet port communicating With saidpassage, a lever pivotally conportion adapted to be engaged by thethrottle arm of an engine, said lever having a key hole slot therein, avalve seating in the port and having an annular grove receiving thenarrower portion of the slot, and a stem on the valve projecting intothe port.

2. The combination with a carbureter, an intake manifold and throttlearm controlling the fuel outlet of the carbureter, and means for movingthe arm, of a block secured between the carbureter and the manifold, andhaving a fuel passage thercthrough and also having an air inlet portcommunicating with the passage, a lever pivotally connected to theblock, a cam face on the lever engaged by the arm. whereby the lever ismoved in exact accordance with the position of the arm, and a valveconnected to the lever and controlling the entrance of air through saidport.

3. The combination with a carbureter, and an intake manifold, of a blocksecured between the carburete-r and the manifold and having a fuelpassage therethrough, said block having an air inlet communicating withthe said passage, a lever pivotally connected to the block, a valvecarried by the lever and normally closing the air inlet passage, saidlever having a cam portion, and a throttle lever controlling the exit offuel from the carbureter, said throttle lever engaging the cam portionof the first mentioned lever whereby the operation of the throttleautomatically controls the movement of the air inlet valve.

4. The combination with a carburetor, and an intake manifold, of a blocksecured between the carbureter and the manifold and having a fuelpassage therethrough, said block having an air inlet communicating withthe said passage, a lever pivotally connected to the block, a valvecarried by the lever and normally closing the air inlet passage, saidlever having a cam portion. and a throttle lever controlling the exit offuel from the carbureter, said throttle lever engaging the cam portionof the first mentioned lever, whereby the operation of the throttleautomatically controls the movement of the air inlet valve, and means onthe first mentioned lever engaging the block and limiting its pivotalmovement.

EBER M. PERFECT.

